The discovery was made after doctors X-rayed Leonard Woronowicz to see if he had cracked his skull in a fall while climbing over a stool in his kitchen four days earlier.
Instead they found a blade that had penetrated the 61-year-old's head just below his right ear. It had snapped off at the handle without touching any major blood vessels or nerves - or causing any lasting damage.
He said: "I thought they might give me an aspirin, instead they pulled a five inch knife blade out of my head."
He said: "I had some tools and other gadgets scattered on the kitchen floor where I had been doing the work when I tripped. The blade from the kitchen knife must have pierced my head then. My head hurt a bit, but I was convinced that it was from the fall. There was a small gash on the side of my head near my ear, but I thought it would soon heal and did not make much of it. I put a plaster on it and left it."
He added: "I didn't even guess what had happened when the next day I wanted to cut a piece of bread but couldn't find the kitchen knife. Despite carefully searching the room I could only find the handle. But I forgot about it as my headaches got worse over the next few days, and I decided to go to a hospital."
THIS IS UNBELIEVABLE!! WHAT DO U THINK?